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    • 31. 发明授权
    • Process for the production of benzoxazinones
    • 生产苯并恶嗪酮的方法
    • US6040443A
    • 2000-03-21
    • US119300
    • 1998-07-20
    • Georges MetzgerDieter ReinehrSerge Hauger
    • Georges MetzgerDieter ReinehrSerge Hauger
    • C07D265/22C07D265/02
    • C07D265/22
    • There is described a process for the production of a 1,3-benzoxazin-4-one having the formula: ##STR1## in which R.sub.1 and R.sub.2, independently, are hydrogen, cyano, halogen, nitro, C.sub.1 -C.sub.20 alkyl, O--C.sub.1 -C.sub.20 alkyl, phenyl, NH--CO--C.sub.1 -C.sub.20 alkyl, N(R.sub.3).sub.2, SO.sub.2 N(R.sub.3).sub.2, COOR.sub.3 or CON(R.sub.3).sub.2 in which R.sub.3 is hydrogen, cyano, halogen, nitro, C.sub.1 -C.sub.20 alkyl, O--C.sub.1 -C.sub.20 alkyl, phenyl or NH--CO--C.sub.1 -C.sub.20 alkyl, comprising reacting, at elevated temperature, 1 molar equivalent of an o-hydroxybenzamide of formula: ##STR2## in which R.sub.1 has its previous significance, with 2 to 6 molar equivalents of a benzoyl chloride of formula: ##STR3## in which R.sub.2 has its previous significance. The 1,3-benzoxazin-4-ones having the formula (1) so obtained are important intermediates for the production of triazine compounds having excellent absorption spectrum characteristics and good resistance to exposure to UV light.
    • 描述了制备具有下式的1,3-苯并恶嗪-4-酮的方法:其中R 1和R 2独立地是氢,氰基,卤素,硝基,C 1 -C 20烷基,O-C 1 -C 20烷基, 苯基,NH-CO-C 1 -C 20烷基,N(R 3)2,SO 2 N(R 3)2,COOR 3或CON(R 3)2,其中R 3是氢,氰基,卤素,硝基,C 1 -C 20烷基,O-C 1 -C 20烷基 苯基或NH-CO-C 1 -C 20烷基,其包括在升高的温度下,将1摩尔当量的具有其先前意义的式的邻羟基苯甲酰胺与2至6摩尔当量的下式的苯甲酰氯反应: 其中R2具有以前的意义。 具有式(1)的1,3-苯并恶嗪-4-酮是制备具有优异的吸收光谱特性和良好的耐紫外线性的三嗪化合物的重要中间体。
    • 35. 发明授权
    • Process for the preparation of stilbene compounds
    • 二苯乙烯化合物的制备方法
    • US06365737B1
    • 2002-04-02
    • US09622472
    • 2000-08-17
    • Georges MetzgerFabienne CuestaPeter RohringerDieter ReinehrRené Schlatter
    • Georges MetzgerFabienne CuestaPeter RohringerDieter ReinehrRené Schlatter
    • C07D25168
    • C11D3/42C07D251/68D06L4/621D06M2200/25D21H21/30
    • A process for the preparation of a 4,4′-bis-(triazinylamino)-stilbene-2,2′-disulphonic acid compound of formula (1) is disclosed, characterized in that (a) in a first reaction step cyanurchloride is reacted with the disodium salt of 4,4′-diaminostilbene-2,2′-disulfonic acid to give the intermediate of formula (2); (b) in a second reaction step the compound of formula (2) is reacted with a compound of formula R1—H and/or R2—H to give the compound of formula (3); (c) in a third step the compound of formula (3) is reacted with the compound of the formula R3H, and reaction step (a) and/or (c) are carried out in a medium consisting of a mixture of water and a polyglycol to give the compound of formula (1), wherein R1, R2 and R3, independently, are phenylamino; phenylamino substitued by C1-C3alkyl, halogen, cyano, COOR or COR; CONH—R; SO2NH—R; NH—COR; mono- or disulphonated phenylamino; morpholino; piperidino; pyrrolidino; —NH2; —NH(C1-C4alkyl); —N(C1-C4alkyl)2; —NH(C2-C4hydroxyalkyl); —N(C2-C4hydroxyalkyl)2; —N(C1-C4alkyl)(C2-C4hydroxyalkyl); NHC2-C4 alkylsulphonic acid; —OC1-C4alkyl; an aminoacid or aminoacid amide residue from which a hydrogen atom on the amino group has been removed; R1 and R2 may further independently represent hydrogen; C1-C4alkyl; phenyl; naphthyl; phenyl or naphthyl substituted by C1-C4alkyl, C1-C4alkoxy, halogen, C2-C5alkanoyl-amino, nitro, sulpho or C1-C4alkylated amino; R is hydrogen; or C1-C3alkyl; and M is H, Na, Li, K, Ca, Mg, ammonium, or ammonium that is mono-, di-, tri- or tetrasubstituted by C1-C4alkyl, C2-C4hydroxyalkyl or a mixture thereof.
    • 公开了制备式(1)的4​​,4'-双 - (三嗪基氨基) - 茋-2,2'-二磺酸化合物的方法,其特征在于(a)在第一反应步骤中,氰化氢反应 与4,4'-二氨基芪-2,2'-二磺酸的二钠盐得到式(2)的中间体; (b)在第二反应步骤中,将式(2)化合物与式R 1 -H和/或R 2 -H的化合物反应,得到式(3)化合物; (c)在第三步中,式(3)化合物与式R3H的化合物反应,反应步骤(a)和/或(c)在由水和 得到式(1)化合物,其中R 1,R 2和R 3独立地是苯基氨基; 由C 1 -C 3烷基,卤素,氰基,COOR或COR取代的苯基氨基; CONH-R; SO2NH-R; NH-COR; 单或二磺基苯基氨基; 吗啉代 哌啶子 吡咯烷 -NH2; -NH(C 1 -C 4烷基); -N(C 1 -C 4烷基)2; -NH(C 2 -C 4羟烷基); -N(C 2 -C 4羟烷基)2; -N(C 1 -C 4烷基)(C 2 -C 4羟烷基); NHC2-C4烷基磺酸; -OC1-C4烷基; 已除去氨基上的氢原子的氨基酸或氨基酸酰胺残基; R 1和R 2可以进一步独立地表示氢; C 1 -C 4烷基; 苯基; 萘基; 被C 1 -C 4烷基,C 1 -C 4烷氧基,卤素,C 2 -C 5烷酰基 - 氨基,硝基,磺基或C 1 -C 4烷基化氨基取代的苯基或萘基; R是氢; 或C 1 -C 3烷基; 并且M是被C 1 -C 4烷基,C 2 -C 4羟烷基或其混合物单,二,三或四取代的H,Na,Li,K,Ca,Mg,铵或铵。